A Brief Review on Primordial Black Holes as Dark Matter

Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures. Some of their characteristic signals are examined, such as the emission of particle...

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Bibliographic Details
Published inFrontiers in astronomy and space sciences Vol. 8
Main Authors Villanueva-Domingo, Pablo, Mena, Olga, Palomares-Ruiz, Sergio
Format Journal Article
LanguageEnglish
Published Frontiers Media S.A 28.05.2021
Subjects
21 cm cosmology
accretion
cosmology
dark matter
gravitational waves
primordial black holes
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Summary:Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures. Some of their characteristic signals are examined, such as the emission of particles due to Hawking evaporation and the accretion of the surrounding matter, effects which could leave an impact in the evolution of the Universe and the formation of structures. The most relevant probes capable of constraining their masses and population are discussed.
ISSN:2296-987X
2296-987X
DOI:10.3389/fspas.2021.681084